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Adjust destination address after gen_strset 

gcc/

	PR target/59363
	* config/i386/i386.c (emit_memset): Adjust destination address
	after gen_strset.
	(expand_setmem_epilogue): Likewise.

gcc/testsuite/

	PR target/59363
	* gcc.target/i386/pr59363.c: New file.

From-SVN: r205630
This commit is contained in:
H.J. Lu 2013-12-03 12:56:32 +00:00 committed by H.J. Lu
parent ddc923b52d
commit 3848839d3e
4 changed files with 43 additions and 0 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2013-12-03 H.J. Lu <hongjiu.lu@intel.com>
PR target/59363
* config/i386/i386.c (emit_memset): Adjust destination address
after gen_strset.
(expand_setmem_epilogue): Likewise.
2013-12-03 Marek Polacek <polacek@redhat.com>
PR middle-end/56344

7
gcc/config/i386/i386.c
View File

@ -22854,6 +22854,8 @@ emit_memset (rtx destmem, rtx destptr, rtx promoted_val,
if (piece_size <= GET_MODE_SIZE (word_mode))
{
emit_insn (gen_strset (destptr, dst, promoted_val));
dst = adjust_automodify_address_nv (dst, move_mode, destptr,
piece_size);
continue;
}
@ -22923,14 +22925,18 @@ expand_setmem_epilogue (rtx destmem, rtx destptr, rtx value, rtx vec_value,
{
dest = change_address (destmem, DImode, destptr);
emit_insn (gen_strset (destptr, dest, value));
dest = adjust_automodify_address_nv (dest, DImode, destptr, 8);
emit_insn (gen_strset (destptr, dest, value));
}
else
{
dest = change_address (destmem, SImode, destptr);
emit_insn (gen_strset (destptr, dest, value));
dest = adjust_automodify_address_nv (dest, SImode, destptr, 4);
emit_insn (gen_strset (destptr, dest, value));
dest = adjust_automodify_address_nv (dest, SImode, destptr, 8);
emit_insn (gen_strset (destptr, dest, value));
dest = adjust_automodify_address_nv (dest, SImode, destptr, 12);
emit_insn (gen_strset (destptr, dest, value));
}
emit_label (label);
@ -22948,6 +22954,7 @@ expand_setmem_epilogue (rtx destmem, rtx destptr, rtx value, rtx vec_value,
{
dest = change_address (destmem, SImode, destptr);
emit_insn (gen_strset (destptr, dest, value));
dest = adjust_automodify_address_nv (dest, SImode, destptr, 4);
emit_insn (gen_strset (destptr, dest, value));
}
emit_label (label);

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2013-12-03 H.J. Lu <hongjiu.lu@intel.com>
PR target/59363
* gcc.target/i386/pr59363.c: New file.
2013-12-03 Marek Polacek <polacek@redhat.com>
PR c/59351

24
gcc/testsuite/gcc.target/i386/pr59363.c Normal file
View File

@ -0,0 +1,24 @@
/* PR target/59363 */
/* { dg-do run } */
/* { dg-options "-O2 -mtune=amdfam10" } */
typedef struct {
int ctxlen;
long interhunkctxlen;
int flags;
long find_func;
void *find_func_priv;
int hunk_func;
} xdemitconf_t;
__attribute__((noinline))
int xdi_diff(xdemitconf_t *xecfg) {
if (xecfg->hunk_func == 0)
__builtin_abort();
return 0;
}
int main() {
xdemitconf_t xecfg = {0};
xecfg.hunk_func = 1;
return xdi_diff(&xecfg);
}